Who is ready for a very wonderful Game ? [OFF-TOPIC]

Question

what do you think if we play a game of object and classes !!!
Law of the game is :
1- every one tell an object and find her class
2- after that take the last letter of class and find another object start with this letter
3- make a question about that object
● for exemple : pizza is an object of food Class
last lettre of class food is( d )
so d will be the first letter of the other object
danky is an object of what ?
next one well answer danky is an object of animal class
Light is an object of what ?

Answer 1

Light is an object of Energy
yacht is an object of ...?

Answer 2

You are an object of Human (?)
water is an object of....?

Answer 3

Time ia an object of relativily
You are an object of...

Answer 4

yacht is an object of watercraft
time is an object of....?